com.willetinc.hadoop.mapreduce.dynamodb.io.AttributeValueWritable.java Source code

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Here is the source code for com.willetinc.hadoop.mapreduce.dynamodb.io.AttributeValueWritable.java

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/**
 * Copyright 2012 Willet Inc.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.willetinc.hadoop.mapreduce.dynamodb.io;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;

import org.apache.hadoop.io.Writable;

import com.amazonaws.services.dynamodb.model.AttributeValue;
import com.willetinc.hadoop.mapreduce.dynamodb.AttributeValueIOUtils;
import com.willetinc.hadoop.mapreduce.dynamodb.Types;

public abstract class AttributeValueWritable implements Writable {

    private final String fieldName;

    private final Types type;

    private AttributeValue value;

    public AttributeValueWritable(Types type, String fieldName) {
        this.type = type;
        this.fieldName = fieldName;
    }

    public AttributeValueWritable(Types type, String fieldName, AttributeValue value) {
        this.type = type;
        this.fieldName = fieldName;
        this.value = value;
    }

    @Override
    public void readFields(DataInput in) throws IOException {
        value = AttributeValueIOUtils.read(type, in);

    }

    @Override
    public void write(DataOutput out) throws IOException {
        AttributeValueIOUtils.write(type, value, out);
    }

    public String getFieldName() {
        return fieldName;
    }

    public Types getType() {
        return type;
    }

    public AttributeValue getValue() {
        return value;
    }

    public void setValue(AttributeValue value) {
        this.value = value;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((fieldName == null) ? 0 : fieldName.hashCode());
        result = prime * result + ((type == null) ? 0 : type.hashCode());
        result = prime * result + ((value == null) ? 0 : value.hashCode());
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        AttributeValueWritable other = (AttributeValueWritable) obj;
        if (fieldName == null) {
            if (other.fieldName != null)
                return false;
        } else if (!fieldName.equals(other.fieldName))
            return false;
        if (type != other.type)
            return false;
        if (value == null) {
            if (other.value != null)
                return false;
        } else if (!value.equals(other.value))
            return false;
        return true;
    }
}